Safety razor



| H. BRIGGS SAFETY RAZOR Sept. 10, 1929.

Filed Jan. 5, 1927 INVENTDH.

Y W/ML Patented Sept. 10, 1929.

UNITED STATES LAURANCE HAROLD BRIGGS, 01F TORONTO,

ONTARIO, CANADA, AssIGnon, QBY MESNE ASSIGNMENTS, TO BRITISH AMERICAN RAZORS LIMITED, OF TORONTO, CANADA.

SAFETY RAZOR.

Application filed January 5, 1927. Serial No. 159,187.

This invention relates to safety razors and particularly to that type of safety razor in which the handle is arranged obliquely relative to the edges of the blades whereby the 5 razor is naturally held by the user in such a manner that the cutting edges are drawn through the hair with a shearing action.

lVhile razors having the shearing cutting action have been known, I find that the handles have not been arranged to obtain the best results in that while the shearing cut is obtained on some strokes, or other strokes the shearing cut is not obtained owing to the position in which the razor is held; and further the razor must be gripped with the handle in an awkward position.

My object, therefore, is to devise a razor in which the handle is arranged whereby a shearing cut is obtained on practically all 0 strokes, of the razor, to devise certain improvements in construction whereby the manufacture of the razor is facilitated, whereby the various parts of the razor are more firmly secured together, and whereby the number of separable parts are reduced to a minimum.

I attain my object by means of the constructions hereinafter described and illustrated in the accompanying drawings in which Fig. 1 is a side elevation of a razor con-- so structed in accordance with my invention;

Fig. 2 a section through the same;

Fig. 3 a plan and end View of the bed plate partly completed;

Fig. l a plan view of the partly completed guard;

Fig. 5 a similar view of the finished guard; and

Fig. 6 shows respectively a side view of the handle; a side view of the stem; and a sectional View of the thumb screw ready for assembly.

In the drawings like numerals of reference indicate corresponding parts in the different figures.

1 indicates the bed plate, which is provided with the two end pins 2 and the central threaded post 3. The bed plate in plan is shaped as an oblique parallelogram, and the holes for the pins 2 and post 3 are formed therein while the bed plate is in flat form as indicated in Fig. 3. The'pins 2 and-post 3 are positioned in the holes and the bed plate is stamped up in suitable dies to the concavo-convex form, the deforming of the bed plate in the shaping operation securely clamping the pins and post in place.

4 is the guard plate, which is cut along opposite sides to form the teeth 5. The guard plate is also shaped in plan asan oblique parallelograin. The teeth 5, as will be seen from Fig. 4, first extend outwardly substantially at right angles to the side of the guard plate, and are then subsequently bent as shown in Fig. 5

so that they extend parallel-with the ends of the guard plate. The guard plate 4 is provided with holes 6'f0rthe pins 2.

7 is the handle, which isformed oftubing of circular cross section, and suitably milled to provide a rough surface for gripping purposes. The outer end of the handle is flat tened by compressing the cylindrical tube.

The guard plate at is also provided with a substantially circular central opening to re ceive the end of the handle 7. y The edgeof the guard plate surrounding the opening is, how- 7 ever, provided with one or more shallow notchesS, as shown in Figs. 4 and 5, and the end of the handle is: bent outwardly to prevent its withdrawal from the guard plate and at the same timethe metal "of the handle is-so forced into the notches 8, thus preventing any rotary movement of the handle relative to the guard plate. i I

It will be noted, however, that the handle is arranged on the guard plate so that the greatest diameter of the flattened portion lies substantially at right angles to the ends of the guard and bed plates, and therefore the cutting edges lie obliquely relative to said greatest diameter.

This is of importance, as the handle is then arranged in the best position to be naturally grasped by the hand so that the cutting edge will be surest of being positioned to give the desired shearing cut. Further, the guard and bed plates being formed as oblique parallelograms, there are no extending corners tending to interfere with the use of the razor.

Slidable and rotatable in the handle is the stem 9, which is provided at oneend with a guard plate threaded socket 10 to receive the threaded post 3, whileits other end is provided with the thumb nut 11. The stem 9 is in the main round in cross section, but its end is square to be received in the square hole 12 in the nut 11. The hole in the nut 11 is countersunk and the end of the stem 9 is deformed in this hole to prevent its withdrawal. a.

It will thus be seen that the parts are all firmly secured together and that there'is no danger of any rotary movement of the ban dle relative to the guard plate nor of the thumb nut 11 relative tovthe stem.

It will also be noted that the flattening of the handle 7 forms an internal shoulder 13, which prevents the withdrawal of the stem 9 by the engagement of the threaded socket therewith. I 7

There is thus, therefore, in the completed razor, outside of the blade only two sep arate parts; viz, the bed plate 1, and the 4 which supports all the other parts. 7

It willthus be seen that I have devised a Very rigid construction of razor with a mini- -mum of separate parts, and which also enables me to obtain the desirable shearing cutting action.

That I claimis: I In a safety razor, the combination of a bed plate; a threaded post on the bed plate, a.

guard plate; a tubular handle fixedly secured to the guard plate; and a stem slidable and rotatable in said handle, said stemhaving a finger engaging enlargement at one end and a threaded socket on its other end, said bed and guard plates being shaped as oblique parallelograins, said handle having a flattened gripping portion, said flattened portion having its greatest width in a direction substantially at right angles to the ends of the bed and guard plates, saidfiattened portion also forming an internalshoulder with which said socket is'adapted to engage to prevent withdrawal of the-stem from the handle.

Signed at Toronto, Canada, this 28th day of December, 1926.

LAURANCE HAROLD BRIGGS. 

